Mini Dijon Mustard-Tomato Tarts
'Tarte a la Moutarde et a la Tomate,' the French tomato tart with mustard, is one of my favorite things to make with fresh ripe tomatoes. But after cutting, it starts looking a bit messy, so for guests, I bake these mini tarts. The low-fat crust is like a German Quark-Oelteig which I make with Greek yogurt (easier to find in the United States than quark, and less expensive).
You can also use whole wheat flour instead of regular all-purpose or a mixture of the 2 flours. If using whole wheat flour, which absorbs more liquid, you will most likely need about 2 tablespoons more milk. Add 1 tablespoon at a time until the desired consistency is reached.
You want to end up with 12 equal sized tomato slices, so depending on the size of the tomatoes, you might need 3 or 4 tomatoes.